1 files changed, 84 insertions, 0 deletions
diff --git a/sd/source/ui/slidesorter/view/SlsLayeredDevice.hxx b/sd/source/ui/slidesorter/view/SlsLayeredDevice.hxx
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+++ b/sd/source/ui/slidesorter/view/SlsLayeredDevice.hxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <view/SlsILayerPainter.hxx>
+
+#include <vcl/vclptr.hxx>
+#include <vcl/mapmod.hxx>
+
+#include <memory>
+
+namespace sd { class Window; }
+namespace tools { class Rectangle; }
+namespace vcl { class Region; }
+
+class VirtualDevice;
+
+namespace sd::slidesorter::view {
+
+/** A simple wrapper around an OutputDevice that provides support for
+    independent layers and buffering.
+    Each layer may contain any number of painters.
+*/
+class LayeredDevice
+    : public std::enable_shared_from_this<LayeredDevice>
+
+{
+public:
+    explicit LayeredDevice (const VclPtr<sd::Window>& pTargetWindow);
+    ~LayeredDevice ();
+
+    void Invalidate (
+        const ::tools::Rectangle& rInvalidationBox,
+        const sal_Int32 nLayer);
+    void InvalidateAllLayers (
+        const ::tools::Rectangle& rInvalidationBox);
+    void InvalidateAllLayers (
+        const vcl::Region& rInvalidationRegion);
+
+    void RegisterPainter (
+        const SharedILayerPainter& rPainter,
+        const sal_Int32 nLayer);
+
+    void RemovePainter (
+        const SharedILayerPainter& rPainter,
+        const sal_Int32 nLayer);
+
+    bool HandleMapModeChange();
+    void Repaint (const vcl::Region& rRepaintRegion);
+
+    void Resize();
+
+    void Dispose();
+
+private:
+    VclPtr<sd::Window> mpTargetWindow;
+    class LayerContainer;
+    std::unique_ptr<LayerContainer> mpLayers;
+    ScopedVclPtr<VirtualDevice> mpBackBuffer;
+    MapMode maSavedMapMode;
+
+    void RepaintRectangle (const ::tools::Rectangle& rRepaintRectangle);
+};
+
+} // end of namespace ::sd::slidesorter::view
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */